* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  background: #f4f4f4;
  color: #222;
}

.page-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px;
}

.notice-card {
  width: 100%;
  max-width: 680px;
  background: #ffffff;
  border-radius: 24px;
  padding: 48px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.logo-placeholder {
    width: min(260px, 100%);
    aspect-ratio: 3 / 1;
    margin: 0 auto 32px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #777;
    background: transparent;
    font-size: 0.95rem;
}

.logo-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.notice-card h1 {
  margin: 0 0 20px;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.1;
}

.notice-card p {
  margin: 0 auto 16px;
  max-width: 540px;
  font-size: 1.125rem;
  line-height: 1.7;
}

.notice-card p:last-child {
  margin-bottom: 0;
}

.notice-card a {
  color: inherit;
  font-weight: 700;
  text-underline-offset: 3px;
}

.notice-card a:hover,
.notice-card a:focus-visible {
  text-decoration-thickness: 2px;
}

@media (max-width: 600px) {
  .page-wrap {
    padding: 20px 14px;
  }

  .notice-card {
    padding: 32px 22px;
    border-radius: 24px;
  }

  .logo-placeholder {
    margin-bottom: 26px;
  }

  .notice-card p {
    font-size: 1rem;
    line-height: 1.6;
  }
}

.smart-logo {
    display: block;
    width: 220px;
    max-width: 100%;
    height: auto;
    margin: 0 auto 20px;
}